Full-speed field train interval real-time control method based on car-following behavior quality evaluation
A quality assessment and real-time control technology, applied in the control system of the transportation center, railway car body components, railway signal and safety, etc., can solve problems such as the inability to solve the optimal trajectory of the train
Active Publication Date: 2013-05-15
TONGJI UNIV
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When unfavorable factors such as equipment failures, traffic accidents or natural disasters that affect the normal running order of the railway are eliminated, it is often necessary for the train to run at an accelerated speed to resume running according to the "train operation diagram", or under normal running conditions, the distance between trains is too large and the following trains need to be accelerated. To improve the utilization efficiency of line transportation capacity, it is obviously impossible to solve the problem of the optimal trajectory of the train from one speed to another by relying on "continuous primary braking speed".
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[0048] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0049] Step 1: According to the calibration method of the dynamic safe vehicle distance in the full speed range (see formula (1)), determine in real time the safe distance between the vehicle behind and the vehicle in front at the current moment.
[0050] L S =f(V 2 ) (1)
[0051] Formula (1) is the absolute safe vehicle distance L S ("Absolutely safe inter-vehicle distance" belongs to common knowledge in this field, and this instruction manual does not need to describe in detail) 2 The fitting function. Its parabolic fitting curve is shown in figure 1 shown.
[0052] Step 2: Evaluate the safety and efficiency of high-speed train following behavior quality.
[0053] It is mainly to compare the actual vehicle distance and the safe vehicle distance under the current car-following state, judge the qu...
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The invention provides a full-speed field train interval real-time control method based on car-following behavior quality evaluation, belongs to the technical field of train operation control of a railway transportation system, and particularly relates to the problem of dynamic control of full-speed field train interval in the process of car-following operation of a high-speed train, namely, how the high-speed train adjusts and achieves dynamic and real-time control of train interval by self high-quality behavior in the car-following operation process of the high-speed train, so that the aims that the train is safe in operation, and stable and comfortable in behavior adjustment process, and line transport capacity is fully utilized are achieved. The car-following behavior quality estimation and car-following operating state of the high-speed train are tightly combined, and a speed difference control method based on whole car distance dynamic track in the scope of full speed field is provided. Scientific adjustment of the train interval is achieved by combing optimum car-following behavior control with safety, high efficiency and stability (comfort).
Description
technical field [0001] The invention belongs to the technical field of high-speed train operation control in railway transportation systems, and specifically relates to the full-speed domain and dynamic control of train intervals in the process of car-following operation of high-speed trains, that is, how high-speed trains adjust their own high-quality behavior during car-following operation Realize the dynamic and real-time control of train intervals, achieve the purpose of safe train operation, stable and comfortable behavior adjustment process, and full utilization of line transport capacity. Background technique [0002] Train operation control (hereinafter referred to as "train control") technology is classified by speed control mode, mainly including two modes: hierarchical speed control and target distance speed control. [0003] In the hierarchical speed control mode, a block partition is used as a unit, and the speed of the train is controlled according to the speed...
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IPC IPC(8): B61L27/00
Inventor 潘登夏易君
Owner TONGJI UNIV